Question

I saw a few solutions and came up with the following code. My desired result is 100.02. The required result is always between ‘my launch duration=’ and ‘mins’

mystring ='2012-07-11 22:30:33,536  INFO: 00/00/164/ABCTimeTest: my launch duration= 100.02 mins|z-vndn'
mypattern = /^.*=([^mins]*)/
subst = mystring.match(mypattern)
puts subst

output with the above code: 2012-07-11 22:30:33,536 INFO: 00/00/164/ABCTimeTest: my launch duration= 100.02

Whats wrong in my pattern? correct me with my understanding of this pattern.

#/
#^.*=             ## move from start till = (now I have reached till '=')
#([^mins])        ## capture somethings that starts with mins (thats my 100.2)
#/

Answer 1

It works fine for me. Don’t puts subst, as subst contains the MatchData object. The capture is inside $1 or subst[1].

mystring ='2012-07-11 22:30:33,536  INFO: 00/00/164/ABCTimeTest: my launch duration= 100.02 mins|z-vndn'
mypattern = /^.*=([^mins]*)/
subst = mystring.match(mypattern)

# Contains extra whitespace, so call .strip
puts $1.strip
# 100.02

# Or ...
puts subst[1].strip
# 100.02

To get the 100.02 without the extra whitespace, you can use the following:

mypattern = /^.*=\s*([^\smins]*)/